Best Outdoor Generator Transfer Switches of 2025

Steven Taylor Avatar
Steven Taylor
Last Updated: Jan 15, 2025

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Outdoor Generator Transfer Switches are essential for anyone who wants to keep their home powered during a power outage. These switches allow for a quick and easy transfer of power from a generator to a home's electrical system, ensuring that critical appliances and devices remain operational. Designed for outdoor use, these transfer switches are built with durable materials that can withstand harsh weather conditions. They come in a variety of sizes and styles to fit the needs of any homeowner. With an outdoor generator transfer switch, homeowners can have peace of mind knowing that they are prepared for any unexpected power outage.

At a Glance: Our Top Picks

Generac RXSW200A3 Transfer Switch Cover #TOP 1
Generac RXSW200A3 Transfer Switch
ftb score rating icon 9.8
Connecticut Electric 50 Amp Transfer Switch Cover #TOP 2
Connecticut Electric 50 Amp Transfer Switch
ftb score rating icon 9.7
Connecticut Electric EmerGen Transfer Switch Kit Cover #TOP 3
Connecticut Electric EmerGen Transfer Switch Kit
ftb score rating icon 9.5

Top 10 Outdoor Generator Transfer Switches

#TOP 1

Generac RXSW200A3 Transfer Switch

RXSW200A3
Multi
Generac RXSW200A3 Transfer Switch Cover
Generac RXSW200A3 200 Amp Single Phase Generator Automatic Transfer Switch - Service Entrance Rated - NEMA 3R Outdoor Rated Aluminum Enclosure - Power Management for Indoor and Outdoor Use

The Generac Transfer Switch is a 200-Amp single-phase Smart transfer switch that provides efficient power transfer during outages. Its service disconnect feature ensures reliable power transfer, while the aluminum NEMA/UL type 3R enclosure with powder paint ensures durability. The transfer switch is easy to install, and its seamless transition between utility and generator power makes it convenient to use. The Generac contactor is designed for long-lasting service, and the controller efficiently handles timing, sensing, exercising functions, and transfer commands, providing peace of mind. Users can manage up to 8 additional loads by using the transfer switch in tandem with Generac Smart Management modules, optimizing power distribution and enhancing installation efficiency. Enjoy a 5-year limited warranty on this reliable replacement for the RTSW200A3 model.

What We Like
Easy installation process
Reliable performance during outages
Automatic operation
Legal backup power solution
Suitable for DIYers with supervision
What We Don't Like
Not approved for Canadian installation
Loose connections found during setup
#TOP 2

Connecticut Electric 50 Amp Transfer Switch

Connecticut Electric 50 Amp Transfer Switch Cover
Connecticut Electric EmerGen Transfer Switch - 50 Amp, 10-Circuit, 12500 Watts, for Generator

The Connecticut Electric Transfer Switch is an essential tool for anyone needing dependable power during outages. Designed to handle up to 12,500 watts, this switch provides robust support for homes and businesses alike. Its multi-circuit capability allows you to connect high-demand appliances, ensuring you can power essentials like sump pumps. Safety is a top priority, featuring advanced switches that prevent dangerous backfeed to utility lines. Additionally, this transfer switch is compatible with both small and large generators, making it a versatile choice for various power needs.

What We Like
Reliable during power outages
Easy installation process
High power capacity
Durable and sturdy design
Compact and user-friendly
What We Don't Like
Limited internal space for connections
Some installation challenges
#TOP 3

Connecticut Electric EmerGen Transfer Switch Kit

EGS107501G2KIT
Grey
Connecticut Electric EmerGen Transfer Switch Kit Cover
Connecticut Electric EmerGen Transfer Switch Kit - 30 Amp, 10-Circuit, 10-Foot Cord, 7500 Watts, for Generator

The Connecticut Electric EmerGen Transfer Switch Kit is a reliable and cost-effective solution for connecting your portable generator to your home. With a 30-amp output and NEMA L14-30 receptacle, this transfer switch kit is designed to be used with emergency generators. It offers easy installation with clear instructions, providing a safer alternative to running your generator without a transfer switch. The kit features four 2-pole 240-volt circuits, making it ideal for well or water sump pump applications. Additionally, the tie bars can be removed to accommodate four additional single-pole circuits. The transfer switch and power inlet have a NEMA 3R rainproof rating, allowing for indoor or outdoor use. The double-throw rocker switches ensure power surge protection, eliminating the risk of back-feeding when power is restored. Compatible with all residential load centers, this transfer switch kit offers flexibility and peace of mind.

What We Like
Reliable transfer switch
Easy installation
Well-built and solid
Good customer service
Affordable price
What We Don't Like
Short generator inlet leads
External inlet box limitations
#TOP 4

Reliance Controls Corporation 31406CRK Transfer Switch Kit

31406CWK
Gray
Reliance Controls Corporation 31406CRK Transfer Switch Kit Cover
Reliance Controls Corporation 31406CWK 30 Amp 6-circuit Pro/Tran Transfer Switch Kit for Generators (7500 Watts).,Gray

The Reliance Transfer Switch Kit is a 30 Amp 6-circuit Pro/Tran transfer switch kit suitable for generators with up to 7500 watts. This kit allows you to safely and easily transfer power from your generator to your household circuits in case of a power outage. With a 10.00 feet hose length and corded-electric power source, this transfer switch kit is easy to use and install. The kit includes six different circuits, giving you flexibility in choosing which circuits to power. The transfer switch kit also comes with a gray color that blends well with most outdoor decors. With its high-quality and reliable design, the Reliance Transfer Switch Kit is a must-have for anyone who wants to ensure uninterrupted power supply during emergencies.

What We Like
Excellent customer support
Easy installation process
Robust and well-designed product
Effective for power outages
Accurate watt meters
What We Don't Like
Watt meters may show inaccurate readings
Additional parts may be needed
#TOP 5

MUJURUR 100A Generator Transfer Switch

100A
MUJURUR 100A Generator Transfer Switch Cover
100A Generator Transfer Switch,24000W General-Duty Double-Throw Safety Switch,120/240-Volt Transfer Switch,Stronger Stability Manual Transfer Switch,Meeting NEMA 3R Standards for Outdoor and Indoor

The MUJURUR Transfer Switch is designed to easily switch your home power from the electric grid to a backup generator or solar power. With a robust capacity of 100 amps and 24,000 watts, you can confidently run your essential appliances, even during outages. Its manual design, free from electronic components, ensures long-lasting reliability without the risk of moisture or dust interference. Built from galvanized steel, this switch meets NEMA 3R standards, making it weather-resistant for outdoor use. Safety features like a lock hole and grounding position provide peace of mind, protecting you from accidental shutdowns and electrical hazards.

What We Like
Transforms sub panel effectively
Reliable locking switch
Well built construction
Easy installation
What We Don't Like
Not UL certified
#TOP 6

Reliance Controls R306A Transfer Switch

R306A
Gray
Reliance Controls R306A Transfer Switch Cover
R306A Pro/Tran Outdoor 30-Amp 6-Circuit 2 Manual Transfer Switch with L14-30 Power Inlet

The Reliance Transfer Switch is designed for outdoor use and can handle up to 30 amps across six circuits. It allows you to seamlessly switch between your generator and your home's power supply, ensuring you stay powered during outages. With its L14-30 power inlet, you can easily connect your generator. Additionally, it comes with a full manufacturer warranty, giving you peace of mind with your purchase. This switch provides a reliable solution for maintaining power in your home when you need it most.

What We Like
Useful amp meters
High quality materials
Easy installation with clear instructions
Good for backup power
Durable switches and breakers
What We Don't Like
Difficult wire installation
Lock issue with lid
#TOP 7

Reliance Controls R510A Pro/Tran2 Transfer Switch

R510A
black
Reliance Controls R510A Pro/Tran2 Transfer Switch Cover
R510A Pro/Tran2 Outdoor 50-Amp 10-Circuit 2 Manual Transfer Switch with CS6375 Power Inlet

The Reliance Controls R510A Pro/Tran2 Transfer Switch is a reliable and essential tool for anyone who wants to connect their generator to their home's electrical system. This outdoor transfer switch is designed to provide a safe and easy way to connect your generator to your home's circuits. The R510A comes with a full manufacturer warranty, giving you peace of mind when purchasing. With a 50-Amp and 10-circuit capacity, this transfer switch can handle most power requirements. The two manual switches allow you to easily switch between utility and generator power. The CS6375 power inlet makes it easy to connect your generator to the transfer switch. The R510A Transfer Switch is a must-have for anyone who wants to be prepared for power outages.

What We Like
High-quality construction
Easy installation
Includes watt meters
Good installation instructions
Works as advertised
What We Don't Like
Wires not labeled
Return fee charged
#TOP 8

Reliance Controls R310A Pro/Tran2 Transfer Switch

Reliance Controls R310A Pro/Tran2 Transfer Switch Cover
R310A Pro/Tran2 Outdoor 30-Amp 10-Circuit 2 Manual Transfer Switch with L14-30 Power Inlet

The Reliance Transfer Switch is designed to provide a reliable connection for your outdoor generator. With a 30-amp capacity, it allows you to power multiple circuits, ensuring that you have the necessary energy supply during outages. This model features a L14-30 power inlet, making it easy to connect your generator. Additionally, it comes with a full manufacturer warranty, giving you peace of mind with your purchase. With this transfer switch, you can enjoy enhanced convenience and safety when managing your power needs.

What We Like
Easy installation
High-quality construction
Good customer support
Effective during power outages
Clear wiring labels
What We Don't Like
Conduit size could be larger
Wires could be longer
#TOP 9

EZ Generator Switch - Manual Transfer Switch

EZ Generator Switch
UNIVERSAL
Green
EZ Generator Switch - Manual Transfer Switch Cover
EZ GENERATOR SWITCH - The Original, Patented, UL/CSA Approved Manual Transfer Switch

The EZ Generator Switch is a user-friendly, patented manual transfer switch that can be used with any generator. It is UL/CSA approved and compliant and can transfer power to any essential load (heat, lights, refrigeration, solar, inverters, sump pumps) without the need to touch existing circuit breakers. The switch is made and assembled in the U.S.A by a veteran-employed company that offers real-life customer support.

What We Like
Well-designed product
Clear installation instructions
Efficient for power outages
Multiple installation modes
Supports US businesses
What We Don't Like
Some assembly required
Higher price than alternatives
#TOP 10

Reliance Controls 31410CRK Pro/Tran 10-Circuit 30 Amp Generator Transfer Switch Kit

31410CRK
Gray
Pack of 1
Reliance Controls 31410CRK Pro/Tran 10-Circuit 30 Amp Generator Transfer Switch Kit Cover
Reliance Controls 31410CRK Pro/Tran 10-Circuit 30 Amp Generator Transfer Switch Kit,Gray

The Reliance Transfer Switch Kit is a convenient solution for your circuitry and multi-wiring needs, designed for both residential and commercial applications. This transfer switch kit is specifically built for generators with a maximum running wattage of 7,500. The 18-inch flexible conduit whip makes it easy to attach to the load center. With a maximum of 10 single-pole circuits and 5 double-pole circuits, this transfer switch kit is perfect for your power needs. Additionally, the rugged, powder-coated steel cabinet and six combination knockouts ensure a reliable and durable product. With its fast and easy installation, the Reliance Transfer Switch Kit is an ideal choice for those seeking a simple and convenient transfer switch solution.

What We Like
Easy installation
Clear circuit labeling
Solid and heavy-duty construction
Effective load balancing
Power meters for monitoring
What We Don't Like
Requires careful load management
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Can a generator transfer switch be installed outside?

Yes, a generator transfer switch can be installed either on the interior or exterior of your house. It is permanently hardwired between the generator and the service panel to ensure a safe and reliable connection.

2. What kind of transfer switch do I need for a generator?

The type of transfer switch you need for a generator depends on the generator's installation. Portable generators typically require a manual switch, while permanently installed standby generators can use either a manual or automatic switch. The automatic switch is usually the most convenient option for standby generators.

3. Where is the best place to put a generator transfer switch?

The location of the generator transfer switch can vary depending on the setup. It can be placed near the generator or even on the roof of a building. The key is to position it where the emergency power source is located.

4. What is the difference between a generator interlock and a transfer switch?

A transfer switch is limited to a specific number of circuits, while a generator interlock kit allows you to connect the generator to any circuit within the electrical panel. This provides more flexibility in powering various circuits during a power outage.

5. Is it illegal to run a generator without a transfer switch?

While it is technically possible to connect a generator to your circuit panel without a transfer switch, it is dangerous and often illegal. It is not recommended by experts due to safety concerns and code regulations.

6. Do you need an electrician to install a generator transfer switch?

Yes, it is strongly recommended to have a licensed electrician install a generator transfer switch, especially if you are planning to connect the generator directly to your home. This ensures a safe and proper installation, and it may also require a permit.

7. How far can a generator be from the transfer switch?

While there is no strict rule, the standard distance between a generator and the transfer switch is usually around 60-70 feet. This helps reduce generator noise and improves the efficiency of electricity transmission.

8. Do you need to ground a generator when using a transfer switch?

If a portable generator is connected to a structure, such as a home or office, via a transfer switch, it must be properly grounded. This typically involves connecting it to a grounding electrode system, such as a driven ground rod, to ensure safety.

Generator interlock switches are legal for use, but it is important to ensure that the interlock kit meets the electrical codes and regulations. The kit should allow only one breaker to be in the 'ON' position at a time to comply with safety standards.

Editor's Notes

During our outdoor generator transfer switch research, we found 24 outdoor generator transfer switch products and shortlisted 10 quality products. We collected and analyzed 22,741 customer reviews through our big data system to write the outdoor generator transfer switches list. We found that most customers choose outdoor generator transfer switches with an average price of $291.09.

The outdoor generator transfer switches are available for purchase. We have researched hundreds of brands and picked the top brands of outdoor generator transfer switches, including Generac, Connecticut Electric, Reliance Controls, MUJURUR, EZ Generator Switch. The seller of top 1 product has received honest feedback from 3,366 consumers with an average rating of 4.8.

Written by
Steven Taylor Avatar

Steven Taylor grew up in a small town called Beaufort in South Carolina and his passion for building and woodworking has led him to master the latest garden gadgets. He always holds every chance to patch up or sand down his beloved garden. There are various novel technologies in his articles.

Outdoor Generator Transfer Switches Comparison Table

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#TOP10
Brand Generac Connecticut Electric Connecticut Electric Reliance Controls MUJURUR Reliance Controls Reliance Controls Reliance Controls EZ Generator Switch Reliance Controls
Current Rating 200 Amps 50 Amps 30 Amps 30 Amps 100 Amps 30 Amps 50 Amps 30 Amps 20 Amps 30 Amps
Operation Mode Smart Switch automatic ON-OFF ON-OFF-ON - Manual Manual - ON-OFF-ON ON-OFF-ON
Contact Type Normally Open Normally Open Normally Closed Normally Closed - Normally Open Electrical - Normally Open Normally Closed
Connector Type Screw Or Blade Clamp Plug In Plug In - L14-30 Nema L14-30p and Nema L5-30r - Plug In Plug In
Actuator Type Rotary Rocker Push Button Push Button - Hinge Lever Manual - Push Button Push Button
Operating Voltage 240 Volts 240 Volts 240 Volts 250 Volts (AC) - 250 Volts - - 120 Volts 120 Volts (AC)
Item dimensions L x W x H 6.3 x 13.5 x 30 inches - 11.5 x 20.5 x 14.5 inches 4.5 x 7 x 7.5 inches - 8 x 5 x 13 inches 12 x 5 x 13 inches - 4 x 4 x 4 inches 7 x 4.5 x 13.75 inches
Terminal Screw Or Blade Clamp Spst - - Physical Physical - - Spade
Circuit Type 3-way 2-way 1-way 6-way - 6-way 10-way - - -
FTB Score
ftb score rating icon 9.8
ftb score rating icon 9.7
ftb score rating icon 9.5
ftb score rating icon 9.4
ftb score rating icon 9.3
ftb score rating icon 9.2
ftb score rating icon 9.1
ftb score rating icon 9.0
ftb score rating icon 9.0
ftb score rating icon 8.9
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